mtd: nand: add more comment for MTD_NANDFLASH/MTD_MLCNANDFLASH

In current code, the MTD_NANDFLASH is used to represent both the SLC and
MLC. It is confusing to us.

By adding an explicit comment about these two macros, this patch makes it
clear that:
	MTD_NANDFLASH    : stands for SLC NAND,
	MTD_MLCNANDFLASH : stands for MLC NAND (including TLC).

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 36eace03b2ac..e89b096856f8 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -94,10 +94,10 @@ struct mtd_write_req {
 #define MTD_RAM                 1
 #define MTD_ROM                 2
 #define MTD_NORFLASH            3
-#define MTD_NANDFLASH           4
+#define MTD_NANDFLASH           4       /* SLC NAND */
 #define MTD_DATAFLASH           6
 #define MTD_UBIVOLUME           7
-#define MTD_MLCNANDFLASH        8
+#define MTD_MLCNANDFLASH        8       /* MLC NAND (including TLC) */
 
 #define MTD_WRITEABLE           0x400   /* Device is writeable */
 #define MTD_BIT_WRITEABLE       0x800   /* Single bits can be flipped */